Listen to My Number 1 (Backing Track Instrumental Version) online. My Number 1 (Backing Track Instrumental Version) is an English language song and is sung by Cafe Backing Band. My Number 1 (Backing Track Instrumental Version), from the album My Number 1 (Backing Track Instrumental Version), was released in the year 2015. The duration of the song is 3:02. Download English songs online from JioSaavn.